package com.zisu.springcloud.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.zisu.springcloud.entity.CommonResult;
import com.zisu.springcloud.entity.Payment;
import com.zisu.springcloud.myhandler.CustomerBlockHandler;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @Desc: ""
 * @Author: caixiang
 * @DATE: 2020/10/2 15:05
 */
@RestController
public class RateLimitController {

    @GetMapping("/byResource")
    @SentinelResource(value = "byResource", blockHandler = "handleException")
    public CommonResult byResource() {
        return new CommonResult(200, "按资源名称限流测试OK", new Payment(2020L, "serial001"));
    }

    public CommonResult handleException(BlockException exception) {
        return new CommonResult(444, exception.getClass().getCanonicalName() + "\t 服务不可用");
    }

    //sentinel规则持久化 即使配置了持久化 但还是需要 你事先访问下接口 sentinel上才会显示的
    @GetMapping("/rateLimit/byUrl")
    @SentinelResource(value = "byUrl", blockHandler = "handleException")
    public CommonResult byUrl()
    {
        return new CommonResult(200,"按url限流测试OK",new Payment(2020L,"serial002"));
    }

    @GetMapping("/rateLimit/coustomerHandlerException")
    //选用自定义 全局的兜底方法..当违背sentinel规则的时候就选用CustomerBlockHandler.class类的 handleException2方法来兜底。
    @SentinelResource(value = "coustomerHandlerException",blockHandlerClass = CustomerBlockHandler.class,blockHandler = "handleException2")
    public CommonResult coustomerHandlerException()
    {
        return new CommonResult(200,"自定义异常处理",new Payment(2020L,"serial003"));
    }
}